Deposit eliminator



y 1936- J. AUDETTE DEPOSIT ELIMINATOR Filed Aug. 14, 1955 2 Sheets-Sheet l [nvenlor :Jsepk Awdefl'e By EM m A lftomejjz 2 Sheets-Sheet 2 [nuenlor J. AUDETTE DEPOSIT ELIMINATOR Filed Aug. 14, 1935 Jas ek 410592 2 58 May 12, 1936.

I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I By I A Home];

Patented May 12, 1936 UNITED STATES PATENT OFFICE DEPOSIT ELIMINATOR Joseph Audette, Burlington, Vt. Application August 14, 1935, Serial No. 36,223 4 Claims. (01. 126-312) This invention relates to deposit eliminators, conductor pipe C is connected at its lower end and is a continuation in part of my application, with the stove and at its other end with the Serial No. 727,162, filed May 23, 1934.. chimney whereby the products of combustion are A primary object of the present invention is conveyed thereby from the stove to the chimney. 5 to construct and design a portion of a conductor The diameter of the conductor pipe is selected 5 pipe leading from a stove or heater to the chimas desired.

ney in the building so as to prevent the condensa- As is customary in the trade, the conductor tion of heavy products of combustion and elimipipe C is formed of sections of standard lengths nate their deposit in the conductor pipe. and these sections fit one into the other to form Further objects of the invention are to provide the continuous conductor pipe. Although the 10 a device of the character referred to that is present invention will operate equally well when strong, compact and durable, thoroughly reliable constructed in any portion or section of the confor its intended purpose, adaptable for installadIlCtOI' P p I prefer to form the Section Of p p tion in any conductor pipe and easily installed nd t d a 5 W th the present invention, which therein, and that is comparatively inexpensive to Section iS that portion O the Conductor p pe n x 15 manufacture. to the stove. The section of conductor pipe 6 is Another feature of the present invention conu d and p a y formed O e t meta A sists of a retarded draft without the products of longitudinally extending p r it n wall 1 extends combustion collecting in the conductor pipe thereacross t interior of the P p section 5- T by allowing the utilization of the i m side edges of the partition wall I are formed with 20 amount of heat in the stove and at the same time flan W h a e be ed as at 8 to the Wall Of the preventing the loss of heat escaping into the p p section The partition W extends o chimney. the upper end of pipe section 6 longitudinally With the foregoing and other objects in view, thereof to a point near the lower end thereof 5 the invention consists of a novel construction, Where said partition Wa iS o ed W th a hericombination and arrangement of parts, as 111 zontal extension 9. The partition wall forms an be hereinafter more specifically described and air Chamber and e p s h ou h the illustrated in the accompanying drawings, wherelatte! Of which the products of Combustion P in is disclosed an embodiment of the invention, On their y to the ye air hamber but it i to be und rst d th t h varia- I0 is segmentalin horizontal cross section and 30 tions, and modifications may be resorted to withmaterially less in area tha the semi-circular out departing from the spirit of the claims herecross section of the p p s n 6- T pa sa e u t appended H for the products of combustion is materially I th drawin h in lik reference greater in cross sectional area than the air chammerals denote corresponding partsher It]. It will be understood that the upper 5 Figure l is a fragmentary portion of a stove portion of p p Section as Shown in Figure 2 and chimney showing an adaptation therewith of Of the drawings, fits into the section of conduca conductor pipe embodying the features of the p p above t. present inv ntio The lower end of chamber I0, that is, the end Figure 2 is an axial detailed sectional view of the chamber next to the stove, is closed b the 40 of a portion or section of the conductor pipe horizontal extension 9, and therefore the prodconstructed in accordance with the present innets of combustion from the stove cannot enter vention, the lower end of the chamber Ill. The upper end Figure 3 is a diametric section taken substan- 0f the Chamber i0 is p as at l2 d through tially on line 3-3 of Figure 2 and looking downthis open end th Chamber mm i with 45 wardly. the conductor pipe above the section 6. The pipe Figure 4 is a diametric section taken substanect o 6 i formed with One 01' more openin tially on the plane of line 4-4 of Figure 2 and H) at a point near the lower or stove end of the looking downwardly. chamber I0. Through this opening I3 chamber Figure 5 is a section similar to Figure 3 of the Opens into the atmosphere There is a dOW 50 drawings showing a modified form of the damper wardly opening hood I4 bolted as at l5 to pipe for use in wood and soft coal burning stoves. section 6 above the opening [3, whereby hot air Referring to the drawings in detail, A indicates is conducted therethrough into opening 13 and a conventional stove and B indicates a chimney chamber ll]. in the building where the stove is located. The In a portion of conductor pipe section 6 near 55 the top of partition wall I, mounted a segmental damper l6. Damper l6 rocks on a spindle l1 having portions thereof adjacent its ends journalled in the walls of pipe section 6 and on the outer end of the spindle is a handle l8 for turning the damper. The arcuate edge of the segmental shaped damper has wiping engagement with the walls of pipe section 6 in the passage II, while the chord side of the damper is fashioned to provide a space I9 next to the partition wall 1. The damper IS in the closed position forms a baffle across the passage ll through which the products of combustion pass. The form of the invention shown in Figure 3 of the drawings is imperforate and is particularly adapted for stoves that utilize oil as a fuel. Ho ever, where the invention is applied to stoves burning wood and soft coal an oval shaped opening 20 is' formed in the damper to the side of the spindle opposed to the space 19. In all other respects the damper illustrated in Figure 5 of the drawings is constructed as heretofore described. In lighting the stove, it will be understood that the damper i6 is turned to open position until the pipe section 6 gets hot. After the pipe section 6 is heated, the damper I6 is turned to closed position and thereafter remains normally closed. In the closed position the products of combustion from the stove are obliged to pass through space I 9 between the peripheral edge of the damper and the partition wall, thereby forcing the products of combustion through the restricted orifice. The retardation of the products of combustion in passage ll below the damper, prevents the escape of excessive heat into the chimney, promotes maximum heating efficiency in the stove, and intensifies the heat in air chamber l0. Air from the atmosphere entering the opening I3 is heated and rises in the chamber 1 0 and passes out of the open end I 2 into the conductor pipe C. The flow of air through the hot chamber l0 creates a pull or suction through the space l9, and this suction pulls all of the heavy fumes into the chimney before they have an opportunity to condense and collect on the side walls of the conductor pipe.

Having thus described the invention, what is there is rockably claimed as new is:

1. A deposit eliminator comprising a conductor pipe to convey products of combustion from a stove to a chimney, a longitudinally extending partition in a portion of the conductor pipe dividing the interior thereof into a passage for the products of combustion and an air chamber, said air chamber closed at the end toward. the stove and opening into the passage at the end toward the chimney, a normally closed damper mounted in the conductor pipe and fashioned to provide a space between its periphery and the partition so as to cause increased flow of the products of combustion next to the partition wall, and said conductor pipe formed with an opening leading into the chamber from the atmosphere near the closed end thereof whereby air is admitted to the lower end of the chamber where it is heated and passed out of the chamber intothe conductor pipe above the passage creating a suction to withdraw heavy fumes from the passage and prevent condensation in the conductor pipe. 7

2. A deposit eliminator comprising a conductor pipe to convey products of combustion from a stove to a chimney, a longitudinally extending partition in a portion of the conductor pipe dividing the interior thereof into a passage for the products of combustion and an air chamber, said air chamber closed at the end toward the stove and opening into the passage at the end toward the chimney, a normally closed damper mounted in the conductor pipe and fashioned to provide a space between its periphery and the partition so as to cause increased flow of the products of combustion next to the partition wall, said conductor pipe formed with an opening leading into the chamber from the atmosphere near the closed end thereof whereby air is admitted to the lower end of the chamber where it is heated and passed out of the chamber into the conductor pipe above the passage creating a suction to withdraw heavy fumes from the passage and prevent condensation in the conductor pipe, and a hood secured to the outside of the conductor pipe about the opening.

3. A deposit eliminator comprising a conductor pipe to convey products of combustion from' a stove to a chimney, a longitudinally extending partition in a portion of the-conductor pipe dividing the interior thereof into a passage for 'the products of combustion and an air chamber, said air chamber closed at the end toward the stove and opening into the passage at the end toward the chimney, a normally closed imperforate damper mounted in the conductor pipe and fashioned to provide a space between its periphery and the partition so as to cause increased flow of the products of combustion next to the partition wall, and said conductor pipe formed with an opening leading into the chamber from the atmosphere near the closed end thereof whereby air is admitted to the lower end of the chamber Where it is heated and passed out of the chamber into the conductor pipe above the passage creating a suction to withdraw heavy fumes from provide a space between its periphery'and the partition so as to cause increased flow of the products of combustion next to the partition wall, and said conductor pipe formed with an opening leading into the chamber from the atmosphere'near the closed end thereof whereby air is admitted to the lower end of the chamber where it is heated and passed out of the chamber into the conductor pipe above the passage creating a suction to withdraw heavy fumes from'the passage and prevent condensation in the conductor pipe.

JOSEPH passage at the endtoward, 

